30Km long distance COFDM HDMI Wireless Video Transmitter Cwestiynau Cyffredin
30Km long distance COFDM HDMI Wireless Video Transmitter Receiver Full Set Audio Video TX RX for UAV Drone 1080P 908T
30-150Km pellter hir COFDM HDMI Trosglwyddydd System Trawsyrru Fideo Di-wifr Derbynnydd Set Llawn Fideo Sain TX RX ar gyfer UAV Drone UGV 1080P
nodwedd
- hintegreiddio'n Uchel, dyluniad cyfun modiwlaidd
- Defnyddio technoleg modiwleiddio COFDM, H.264 image coding technology
- Gall drosglwyddo un sianel o 1080P HDMI (SDI dewisol) signal
- Oedi is, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milieiliadau.
- All-rownd gyfathrebu, Nid yw ofn o waliau adeiladau
- Cyfathrebu cyflym rhwng teithio, the maximum moving speed can reach 600 km / awr.
- Achos alwminiwm math gwres trosglwyddydd, gwrth-sioc, Waterproof case is optional.
- Cefnogi LOS a Non-line-of-sight (NLOs) trosglwyddiad symudol
- Nid yw'r pellter yn llai na 30 cilomedr o dan gyflwr llinell y golwg ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Derbyniad cydamserol o signalau sain a fideo, dewisol aml-fformat HDMI1080P diffiniad uchel, ansawdd delwedd DVD allbwn diffiniad safonol
- Gall y derbynnydd wireddu swyddogaethau recordio fideo a gwneud copi wrth gefn
- 128-amgryptio a dadgryptio AES did
- Addasu llawn ar gael
- Upgrade tool: Paramedr Ffurfweddu bwrdd
- defnyddio: UAV, Cerbydau & UGV
- modiwleiddio: COFDM
- foltedd Gweithio: DC11V-DC13V
- ar hyn o bryd yn gweithio: 0.5~ 2W (yn dibynnu ar wahanol PA)
- pŵer trosglwyddo: 0.5W~20W optional
Tabl Cynnwys
cais
Defnyddir y cynnyrch hwn yn bennaf wrth gasglu rhagchwilio technegol a chasglu tystiolaeth adrannau arolygu diogelwch y cyhoedd, trosglwyddiad delwedd amser real o gerbydau awyr di-griw, llongau di-griw, ras gyfnewid radio a theledu, darllediadau byw ar y radio a'r teledu: maes darlledu, darlledu chwaraeon, newyddion cymdeithasol, awyr yn fyw, stiwdio, Alldaith mynydda, ac agweddau eraill. Mae'n addas ar gyfer trosglwyddo delweddau o ansawdd uchel mewn amser real mewn amryw o amgylcheddau cymhleth fel ardaloedd trefol, moroedd, a mynyddoedd.
Manyleb Trosglwyddydd
dull modiwleiddio | COFDM |
foltedd gweithio | DC11V ~ DC13V |
gweithio cyfredol | 0.5 Watts: ≤0.6A DC12V, 1 Watts: ≤0.8A DC12V, 2 Watts: ≤1.5A DC12V 5 Watts: ≤3.0A DC12V 10 Watts: ≤5.0A DC12V 20 Watts: ≤7.0A DC12V |
rhyngwyneb rheoli | rhyngwyneb safonol RS232, 8 Darnau Data, 1 SBit uchaf, Did Cydraddoldeb, Cyfradd Baud: 19200 |
rhyngwyneb data tryloyw, | trosglwyddiad porthladd cyfresol tryloyw unffordd, 8 Darnau Data, 1 Stop Bit, cefnogi Odd Parity, Did Cydraddoldeb, Cydraddoldeb Di-wifr, Cyfradd Baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
dulliau amgryptio | cefnogi amgryptio 128-did |
mapio modiwleiddio | QPSK (4QAM), 16QAM, 64QAM |
ymlaen cywiro gwall | 1/2 2/3 3/4 5/6 7/ 8 |
cyfwng Guard | 1/32 1/16 1/8 1/4 |
Rhif cludwr | 2K |
lled band amledd | 2 / 3 / 4 / 5 / 6 / 7 / 8M Addasadwy |
ffrwd cod trosglwyddo | 2000kbs ~ 20000kbs Addasadwy |
trosglwyddo pŵer | 0.5 / 1 / 2 / 5 / 10 Watts |
amledd trosglwyddo | Any Frequency Customizable, Cam 1MHz |
gwastadrwydd pŵer | o fewn 10MHz yn ddi-fand na 0.2dB |
cymhareb ysgwydd | y pŵer allbwn o 27dB, cymhareb ysgwydd yn well na -30dB |
yr ail harmonig | ≤-45dB |
MWY | 32Db |
fideo mewnbwn | 720×480 60Rwy'n(NTSC), 720×576 50Rwy'n(PAL), 720 50P, 720 60P, 1080 50Rwy'n, 1080 60Rwy'n, 1080 24P, 1080 25P, 1080 30P, 1080 50P, mae amrywiol foddau yn ymaddasol. |
Rhyngwyneb HD | HDMI, SDI dewisol |
fformat amgodio fideo | H.264 |
safon amddiffyn | siasi math rheiddiadur all-alwminiwm, gwrth-cyrydiad, dyluniad gwrth-sioc |
maint cyffredinol | 9 x 6.4 x 2.3 cm |
Pwysau cyffredinol | ≤0.20KG |
Manyleb y Derbynnydd
Paramedrau derbynnydd HD aml-led band wedi'u gosod ar beiriant | |
Derbyn ystod amledd | 170-860MHz VHF&UHF |
lled band amledd | 2/3/4/5/6/7/8MHz, dewisol |
Lefel mewnbwn RF | -94dBm ~ -15dBm (8M lled band)/-98dBm ~ -15dBm (2M lled band) |
rhwystriant mewnbwn RF | 50 ohm |
cysylltydd mewnbwn RF | N-pen |
modd demodulation | COFDM |
modd cytser | QPSK, 16QAM, 64QAM (dewisol) |
ymlaen cywiro gwall | 1/2, 2/3, 3/4, 5 /6,7/8 (dewisol) |
rhif cludwr | 2k, |
egwyl gard | 1/32, 1/16, 1/8, 1/4 (dewisol) |
datgodio fideo | MPEG-2MP@ML/H.264 |
Cymhareb agwedd | 4: 3 16: 9 |
delwedd fideo yn | 720 * 576 @ 8MHz 1080P @ 60P |
modd allbwn sain | stereo anghytbwys 300 / 200mv |
allbwn sain | allbwn2Audio + 2allbwn fideo |
foltedd gweithredu | AC220V / DC12V <0.5A |
tymheredd gweithredu | – 20℃ ~ + 50 ℃ |
Maint ymddangosiad | 480*260*45 (1U.) siasi |
pwysau offer | 1.5kg (iaith ddwyffordd 2.5Kg) |
Nodyn: y cysylltydd diofyn yw HDMI, os oes angen y model rhatach arnoch chi, cysylltydd ar gyfer cysylltydd fideo melyn CVBS 720p HDMI, os gwelwch yn dda Gwiriwch yma am fodel arall.
Disgrifiad:
– Mae'r ddyfais hon yn mabwysiadu technoleg COFDM, sy'n integreiddio antena trawsyrru, modiwleiddio digidol, sain, a swyddogaeth fideo.
– Maint y compact, gwres bach, ac ystod trosglwyddo hir
– yn gydnaws â chamera bach, gallai alluogi dal a throsglwyddo delwedd HD
– bydd yr ystod drosglwyddo yn hirach os yw'n mabwysiadu antena ennill uchel
– Amrediad trosglwyddo: 5000m (heb unrhyw ymyrraeth)/500M gyda rhwystrau yn torri ar draws
Nodweddion:
– Maint y compact, dyluniad modiwleiddio
– Yn mabwysiadu technoleg modiwleiddio COFDM, Technoleg cywasgu com delwedd MPEG-2
– Cyfathrebu Omnidirectional
– mae cyfathrebu cyflym yn galluogi trosglwyddo sain a fideo amser real
– Cas alwminiwm sy'n gallu gwrthsefyll sioc
– Trosglwyddiad NLOS
manylebau:
trosglwyddydd:
– maint:90x64x23mm
– pwysau:200g
– antena:22mm
derbynnydd
– maint: 87x70x20mm
– pwysau:200g
– Uchder antena:42.5cm (gellid ei blygu)
Manyleb Technegol
– modiwleiddio: COFDM
– foltedd gweithio: DC11V-DC13V
– ar hyn o bryd yn gweithio:0.5W: llai na 0.6A @ DC12V
– porthladd rheoli: porthladd standrad RS232. 8-darnau data did, 1-bit stop bit, cyfradd baud:19200, cefnogi gwiriad cydraddoldeb od
– porthladd data trosglwyddo:8 darnau data did,1 bit stop bit, cyfradd baud,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Encryption: cymorth 128 amgryptio
– mapio modiwleiddio: QPSK (4QAM),16QAM,64QQAM
– Ymlaen cywiro gwall: 1/2,2/3,3/4,5/6,7/8
– Amddiffyn yr egwyl: 1/32,1/16,1/8,1/4
– Rhif cludwr:2K
– lled band amledd:2/3/4/5/6/7/8M addasadwy
– llif trafnidiaeth:2000kbs-20000kbs yn addasadwy
– pŵer trosglwyddo: 2W
– amledd trosglwyddo: gellid ei addasu, cam yw 1Mhz
– gwastadrwydd pŵer: llai na 0.2db o fewn 10Mhz
– ail harmonig: llai na -45db
– MWY:32db
– fideo mewnbwn:1VP-p,75ohm
– Fformat rhaglen fideo: MPEG-2
– Ansawdd fideo: 720×576 pan yn uwch na 4M
– fformat: Gellid gosod NTSC a PAL
Manyleb dechnegol y derbynnydd:
– Ystod amledd derbynnydd: 170-860MHz, VHF ac UHF
– lled band amledd: 2/3/4/5/6/7/8 MHz, addasadwy
– Lefel mewnbwn RF:-94DBM-0dbm yn 8M / -98dbm-0dbm yn 2M
– rhwystriant mewnbwn RF: 50ohm
– Porthladd mewnbwn RF: Ysgol Uwchradd
– modiwleiddio: COFDM
– Y ffordd gytser: QPSK,16QAM,64QAM dewisol
– Ymlaen cywiro gwall: 1/2,2/3,3/4,5/6,7/8 dewisol
– Rhif cludwr:2K
– Bwlch amddiffyn:1/32,1/16,1/8,1/4
– Cyfradd sgrin:4:3,16:9
– delwedd fideo:720×576 @ 6Mhz
– Porthladd allbwn sain a fideo: safonol 3.5 porthladd
– foltedd Gweithio: DC12V 0.3A
Pecyn wedi'i gynnwys:
– 1 x trosglwyddydd
– 1 x derbynnydd
– 1 gosod x ategolion
30Km long distance COFDM HDMI Wireless Video Transmitter
Cwestiynau Cyffredin
cwestiwn 1: Dwi angen ystod 30km o leiaf o'r awyr i'r ddaear ar gyfer yr UAV UGV USV.
ateb 1:Mae ein system yn ei gefnogi, dylai ddefnyddio mwyhadur pŵer 2W, mae'n well defnyddio'r antena trosglwyddydd hir arbennig a dwy antena derbynnydd uwch.
COFDM-912T VS COFDM-908T
cwestiwn 2: Pa mor bell y gallaf ei gyrraedd os byddaf yn defnyddio'r trosglwyddydd a'r derbynnydd ar lawr gwlad?
ateb: Ar ddefnydd tir, rhaid bod gan y trosglwyddydd a'r derbynnydd wahaniaeth uchder penodol i drosglwyddo pellteroedd hir.
Dim ond y pellter hiraf 2.5 cilomedr os yw'r trosglwyddydd a'r derbynnydd ar yr un uchder ar y ddaear. Gweler ein fideo prawf; oherwydd bod y trosglwyddydd a'r derbynnydd yn cael eu gosod ar wahanol lefelau, mae un ochr i'r mynydd, ochr arall sydd ar lan y mor, defnyddiwyd y ddau wat rhagosodedig i'w trawsyrru 27 cilomedr.
cwestiwn 3: A yw'n cefnogi amgylchedd gwaith o -20 graddau?
ateb: Ydw, cefnogi
cwestiwn 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
ateb: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
cwestiwn 5:Do you have any special case shells for marine use?
ateb: Ydw, Gwiriwch y llun isod. (For the transmitter with a three-proof shell, diddos, gwrth-sioc, anti-salt spray, 防水,防震,防盐雾)
Rhagofalon ar gyfer addasu archeb
- Amlder: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- hyd Antenna: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 neu 1.8 meters optional)
- Antenna type:
According to your application scenario, the wireless video transmitter be placed on the drone or on the ground, or on the vehicle? Select different transmit antennas for transmitter and receiver antennas.
The transmitter of the UAV uses a short omnidirectional antenna as much as possible. The transmitter antenna installed on the ground or on the vehicle should be as long as possible, and it can be installed higher to avoid other obstacles on the ground. The receiver is generally used on the ground, try to choose a longer receiver antenna. If it is fixed in one place, a directional antenna can also be used. For more antenna types, please refer to https://ivcan.com/price-list-for-wireless-video-transmitter-and-receiver-antenna/.
Cwestiynau Cyffredin
Q. What is the video resolution?
A: HDMI 1080p.
Q. Does the transmitter power current is high?
A: Ar gyfer trosglwyddydd, the different PA (mwyhadur pŵer) y tu mewn, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Ar gyfer derbynnydd, the current is only 0.3A (300mA)
Q: Like we only need 10km, how much PA is recommended?
A: Considering that your transmitter and receiver are used on the ground, unlike drones, the heights of the transmitter and receiver are very different. It is recommended to use a 10W PA transmitter for 10 cilomedr. You also need to consider that your receiver is installed on the car, and it keeps moving at high speed at any time. Only a high-power transmitter can ensure the signal stability at the receiver.
Q: What frequency is better? 2.4G or 5.8G?
A: The frequency range of Cofdm is 170~860Mhz.
We also have products that use 2.4G or 5.8G, but the range of these two intervals is the same as the frequency of WiFi, which will cause the transmission to be greatly interfered by WiFi, and the transmission distance will be greatly shortened.
If there are digital TV DVB-T signals locally, try to avoid frequencies in these ranges when selecting frequencies.
Q: Can customers adjust the frequency by themselves? If sometimes the frequency is occupied.
A: The default center frequency is 595Mhz, generally there is +/-15Mhz bandwidth, which is 30Mhz, and the frequency range can be adjusted. (580-610MHz).
Beyond this range, it is necessary to change the antenna and PA customized according to this center frequency.
Q:How does the customer adjust the frequency of the transmitter or receiver? Is there any software to change the frequency?
A:It's very easy, the transmitter can use the assistant board next to the picture, and the receiver's assistant board is on the fuselage, with a screen and buttons.
But it is not recommended for customers to adjust, because sometimes he changed the parameters of the transmitter but did not change the parameters of the receiver, saying that he could not receive the signal.
Q: Can I adjust the power amplifier on the transmitter?
A: The user can reduce the actual output power by increasing the impedance of the high power, but cannot increase the transmitter of the low power PA.
Er enghraifft, 10W PA can change to 5W PA, but can not change 5W PA to 10W.
- No one can tell you the exact transmission distance. Because the transmission distance depends on the height of your transceiver antenna and the type and thickness of obstacles, whether the transmitted signal can be diffracted, whether there is interference in the current frequency, etc.
- There are trees or a mountain in the middle, and the transmission distance is different.
- It is difficult to tell you an accurate transmission distance, even the walls have thickness, generally 500-1000 metr.
- Please watch our test video, if you think it is suitable, you can buy a sample for testing, if you are not satisfied, you can return it to us.
- Here is a form for COFDM PA and LOS and NLOS transmission distance for your references.
PA | THE | NLOs |
500mW | >10Km | <300m |
1W | >30Km | <500m |
5W | >60Km | <1500m |
20W | >120km | <3000m |
50W | >200Km | <5000m |
100W | >250Km | <10Km |
Now COFDM-908T supports H.264, not H265.
Max support 1080 50P. We have actually tested that at 1080P60, the frame will be stuck, or the recognition will be incomplete
- Power consumption is equal to current times voltage. Er enghraifft, for a 10W transmitter, the current is 5.5A, and the voltage is 12V, so its power consumption is 66W.
- If you prepare a 1000W rechargeable battery and use a 10W PA transmitter, it is estimated that you can use 1000W divided by 66W, which is equal to 15 oriau.
-
Whether the link between the transmitter and receiver is good or the signal strength can be seen on the small screen at the COFDM receiver.
-
Not on the transmitter. Oherwydd bod COFDM yn drosglwyddiad unffordd, only the receiver can receive the signal strength of the transmission and show them on the screen. If the transmitter needs to see these signals, it is necessary to add a set of data transmission devices to transfer the status signal from the receiver to the transmitter and display them by the signal light.
-
The transmitter and receiver of two-way transmission can have this function, and it is recommended to choose a bidirectional transmission device.
- First of all the frequency is correct.
- In order to achieve the best performance of the transmitter, power amplifier and antenna, they are generally customized according to a central operating frequency point, and they can all work within a working frequency range, generally ±15Mhz. That is to say, when the central operating frequency is 290Mhz, the working range of the transmitter is 275Mhz~305Mhz. So it meets the frequency range of 280~300Mhz required by customers.
- Ydw, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ydw, we can build the transmission of telemetry and video in COFDM-908T.
- Yn gyntaf, the 10-watt RF linear amplifier and the 20-watt RF linear amplifier use the same cavity, which is machined by a CNC mill.
- CNC milling machines are not only expensive but also take a long time to process. The 20W and 10W cavities are universal, so they can be used with each other. For faster delivery, this character was not changed and used directly.
- This product actually has 20 watt. We used special instruments to test it before shipment. Please see the video below. (The instrument shows 3.04dBm plus the black attenuator 40dBm equals 43.04dBm)
- Test video at youtube: https://www.youtube.com/shorts/jfNoZeb1BIA
- Dyma rai gohebiaethau rhwng y pŵer allbwn a'r paramedrau dBm a ddangosir gan yr offeryn.
- 20mW yw 13dBm
200mW yw 23dBm
1 Mae Watts yn 30dBm
2 Mae Watts yn 33dBm
5 Mae Watts yn 37dBm
10 Mae Watts yn 40dBm
20 Mae Watts yn 43dBm
50 Mae Watts yn 47dBm
100 Mae Watts yn 50dBm
Normal Four HDMI Video input and One HDMI output box
If it is just a simple splicing of four camera videos into one video, you can add a box with four HDMI inputs and one HDMI output in front of the transmitter. This means that the monitor on the receiver will always display each video on a quarter of the screen.
Ydw, our dual antenna RF input receiver supports diversity. You can use two yagi directional antenna on our cofdm wireless video receiver.
For better signal reception, it is recommended to have one Yagi directional antenna and one omnidirectional antenna installed on the receiver.
It can be used by photographers. Currently supports 1080@60P, 1080CWY, 1080CWY
Ar hyn o bryd, it does not support 1080i, nor does it support 4K transmission.
20km dros y môr trosglwyddydd fideo diwifr HDMI a phrawf derbynnydd ar gyfer cwch neu o lan i long
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
adolygiadau
Nid oes unrhyw adolygiadau eto.